Promise Technology Vess A8020 Product Manual page 65

Vess A8020 Storage Appliance for Video Surveillance
Information in the Disk Array menu includes:
• Disk Array ID [#]
• Alias
• Operational Status (see below)
• Total Physical Capacity
• Configurable Capacity
• Free Capacity [Bytes]
• Max Contiguous Free Capacity [Bytes]
Other lists in this menu:
• Physical Drives in the Disk Array
• Logical Drives in the Disk Array
Disk Array Operational Status
OK – This is the normal state of a logical drive. When a logical drive is Functional, it is ready for immediate use.
For RAID Levels other than RAID 0, the logical drive has full redundancy.
Synchronizing – This condition is temporary. Synchronizing is a maintenance function that verifies the integrity
of data and redundancy in the logical drive. When a logical drive is Synchronizing, it will function and your data is
available. However, access will be slower due to the synchronizing operation.
Critical / Degraded – This condition arises as the result of a physical drive failure. A degraded logical drive will
still function and your data is still available. However, the logical drive has lost redundancy (fault tolerance). You
must determine the cause of the problem and correct it.
Rebuilding – This condition is temporary. When a physical drive has been replaced, the logical drive
automatically begins rebuilding in order to restore redundancy (fault tolerance). When a logical drive is rebuilding,
it will function and your data is available. However, access will be slower due to the rebuilding operation.
• Media Patrol [Enabled/Disabled]
• Drive Health Polling
• Power Management [Enabled/Disabled]
• Number of Physical Drives
• Number of Logical Drives
• Available RAID Levels
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Managing with the Web Manager